As you will notice, I have linked a document off the Manual Section 8.3 that contains suggestions from this Community that were judged, for all their utility, to be beyond the scope of the Manual. I have pasted it in below.

Some notes about it that might be useful:

1) In contrast to the Manual, that document is very easy to update.
2) I will take no role in maintaining it, including editorial.
3) It would be best to collect changes/additions and notify me to upload once in a while rather than for every little change/addition.
4) These are notes only, and do not need any larger documentary structure at this time as far as I can see.
5) Any changes/additions should be written using standard American English grammar, punctuation and spelling.

Supplemental Notes: KDE on MX Linux
ver. 20150419

You may find a bug in Device Notifier that opens the wrong applications when clicking on default actions. Some users have found that clicking on the File Manager action after plugging in a USB device opened ShowFoto instead of the file manager. Changing the Device Notifier settings or System Settings did not correct this as long as ShowFoto was installed. You should be able to fix this bug by editing /usr/share/kde4/apps/solid/actions/test-predicate-openwindow.desktop, changing this line:

Exec=kioclient exec %f

to this:

Exec=/usr/bin/Dolphin %f

If you have similar miscues with other device actions, delve into /usr/share/kde4/apps/solid/actions/ folder, look for the controlling file, and change the Exec=xxxx line accordingly.

--Desktop search (and tagging): for this you need to install virtuoso-minimal using Synaptic,

--Install qapt-deb-installer, then all you need do to install a deb in KDE4 is click on the deb you wish to install, supply your root password in the dialog, it then resolves any downloads that are required, then installs the deb. QApt is a collection of tools and a library providing a wrapper around APT. The intention is to ease the use of APT in QT-based programs, read as KDE4.

--More themes made for the plasma desktop can be downloaded from Klook by using the "install new themes" link at the bottom right of the apropiate page in system settings.

--Additional wallpapers and applications for KDE4 can be installed using Synaptic, look in the KDE section of Synaptic.

--About-system is an app that gives basic details about your system. Download the 32 bit deb from here.

Once installed, click System Settings > System Administration > About System; or Kmenu > System > KinfoCenter > About System.

-----

MX Snapshot

1) Users with Nvidia graphic cards who have installed Nvidia drivers: When using MX Snapshot to make a snapshot of the system, edit /usr/lib/snapshot-mx/snapshot-exclude.list and enable the following lines by removing the hash sign so the result looks like this:

etc/X11/xorg.conf
etc/X11/xorg.conf.d/20-nvidia.conf[/code]

Unless one of those two files is in your snapshot, you’ll be stuck on the CLI following boot-up and you won’t be able to start X from the CLI.

2) Making a iso backup of your system using mx-snapshot[/b]

Right click on Kmenu > Edit applications > expand System > right click > New Item. in the dialog type in, System Snapshot > OK. In the new dialog finish filling in so that it reads:

Name: System Snapshot
Description: Create a live iso of your System
Command: kdesu snapshot-gui-mx
Check only show in KDE, select an icon (DVD), and save.

For installing, boot DVD into KDE desktop, login as root in konsole, Type in minstall, and install.

Note,, It is better to do a system snapshot as a backup before you install any Graphics drivers, then there is no editing to

If you are using Iceweasel from Wheezy Backports or The latest version of Firefox, you can now enable a new feature called tracking protection in the latest release of Firefox.

"Tracking Protection allows you to take control of your privacy online. While Firefox has a Do Not Track feature that tells websites not to monitor your behavior, companies are not required to honor it. Firefox's Tracking Protection feature puts the control back in your hands by actively blocking domains and sites that are known to track users."

In other words--those companies that refuse to honor the Do Not Track features of incognito browsers will finally see their efforts thwarted with Tracking Protection. It works with a blocklist. The initial blocklist is based on Disconnect and should grow with usage.

Enabling Do Not Track. This feature is more user-friendly and will prevent sites that honour the setting from tracking you. The steps to enable Do Not Track are as follows:

Open Firefox
--Click the menu button (three horizontal lines in the upper right corner)
--Click Preferences
--Click the Privacy button
--Click to enable Tell site that I do not want to be tracked (Figure A)
--Click Close

But is it enough? Not when sites refuse to abide. Fortunately, Firefox still has you covered. In the newest releases of Firefox (37.0.1), you won't find Tracking Protection in the Preferences because the feature is still very new. You can, however, enable it. Here's how:

I tried to improve the notes (also minor typos) to current situation, Sept. 2016 :

Supplemental Notes: KDE on MX Linux
ver. 20150419-bis

You may find a bug in Device Notifier that opens the wrong applications when clicking on default actions. Some users have found that clicking on the File Manager action after plugging in a USB device opened ShowFoto instead of the file manager. Changing the Device Notifier settings or System Settings did not correct this as long as ShowFoto was installed. You should be able to fix this bug by editing /usr/share/kde4/apps/solid/actions/test-predicate-openwindow.desktop, changing this line:

Exec=kioclient exec %f

to this:

Exec=/usr/bin/Dolphin %f

If you have similar miscues with other device actions, delve into /usr/share/kde4/apps/solid/actions/ folder, look for the controlling file, and change the Exec=xxxx line accordingly.

--Desktop search (and tagging): for this you need to install virtuoso-minimal using Synaptic,

--Install qapt-deb-installer, then all you need do to install a deb in KDE4 is click on the deb you wish to install, supply your root password in the dialog, it then resolves any downloads that are required, then installs the deb. QApt is a collection of tools and a library providing a wrapper around APT. The intention is to ease the use of APT in QT-based programs, read as KDE4.

But gdebi-gtk is more versatile than qapt-deb-installer and gives you more info about errors, lint asf..

--More themes made for the plasma desktop can be downloaded from Klook by using the "install new themes" link at the bottom right of the apropiate page in system settings.

--Additional wallpapers and applications for KDE4 can be installed using Synaptic, look in the KDE section of Synaptic.

Once installed, click
System Settings > System Administration > About System

or

Kmenu > System > KinfoCenter > About System.

-----

MX Snapshot

1) Users with Nvidia graphic cards who have installed Nvidia drivers: When using MX Snapshot to make a snapshot of the system, edit /usr/lib/snapshot-mx/snapshot-exclude.list and enable the following lines by removing the hash sign (#), so the result looks like this:

etc/X11/xorg.conf
etc/X11/xorg.conf.d/20-nvidia.conf

Unless one of those two files is in your snapshot, you’ll be stuck on the CLI following boot-up and you won’t be able to start X from the CLI.

2) Making a .iso backup of your system using "mx-snapshot"

in current MX-15, just use the "MX-tool" GUI and navigate from there. Alternatively:

Right click on Kmenu > Edit applications > expand System > right click > New Item.
in the dialog type in, "System Snapshot" > OK. In the new dialog finish filling in so that it reads:

Name: System Snapshot
Description: Create a live iso of your System
Command: kdesu snapshot-gui-mx
Check "only show in KDE", select an icon (e.g. DVD), and save.

For installing, boot DVD into KDE desktop, login as root in konsole, Type in minstall, and install.

Note: It is better to do a system snapshot as a backup before you install any Graphics drivers, then there is no editing to do.

If you are using Iceweasel from Wheezy Backports or The latest version of Firefox, you can now enable a new feature called tracking protection in the latest release of Firefox.

For more versatililty, consider the uBlock plug-in.

"Tracking Protection allows you to take control of your privacy online. While Firefox has a Do Not Track feature that tells websites not to monitor your behavior, companies are not required to honor it. Firefox's Tracking Protection feature puts the control back in your hands by actively blocking domains and sites that are known to track users."

In other words--those companies that refuse to honor the Do Not Track features of incognito browsers will finally see their efforts thwarted with Tracking Protection. It works with a blocklist. The initial blocklist is based on Disconnect and should grow with usage.

Enabling Do Not Track. This feature is more user-friendly and will prevent sites that honour the setting from tracking you. The steps to enable Do Not Track are as follows:

Open Firefox
--Click the menu button (three horizontal lines in the upper right corner)
--Click Preferences
--Click the Privacy button
--Click to enable Tell site that I do not want to be tracked (Figure A)
--Click Close

But is it enough? Not when sites refuse to abide. Fortunately, Firefox still has you covered.

historical reference:
In the newest releases of Firefox (37) - while in Sep 2015 version 48 is current - you won't find Tracking Protection in the Preferences because the feature is still very new. You can, however, enable it. Here's how: